Home / 140,087.91-193,320.39-79,658.56

Finding the Fourth Proportional to 140,087.91, 193,320.39 and 79,658.56

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Solution

The fourth proportional to 140,087.91, 193,320.39 and 79,658.56 is: 109,928.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,087.91 : 193,320.39 = 79,658.56 : x
  2. Step 2: Convert to fraction form
    140,087.91/193,320.39 = 79,658.56/x
  3. Step 3: Cross multiply
    140,087.91x = 193,320.39 × 79,658.56
  4. Step 4: Simplify right side
    140,087.91x = 15,399,623,886.04
  5. Step 5: Solve for x
    x = 15,399,623,886.04/140,087.91
  6. Step 6: Final answer
    x = 109,928.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.